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Widely used throughout metallurgical industry.
High alumina brick of over SK35 contain 46% to 80% Alumina content are made from raw materials of high degree of purity of Bauxite and fireclay. For serve under severe conditions, High alumina bricks have excellent mechanical strength, good resistance to thermal spalling, and are highly resistant to chemical attack by vilatile alkaies and some slag. QUNHUI manufacture and design high alumina bricks to meet the requirements of a great variety of service conditions through quality control.
Main Properties：
|
Item |
Index |
||||
|
Code |
DL-48 |
DL-55 |
DL-65 |
DL-70 |
DL-75 |
|
Al2O3 min, % |
48 |
55 |
65 |
70 |
75 |
|
Refractoriness, min |
1790 |
1793 |
1760 |
1770 |
1780 |
|
Refractoriness under load (0.2MPa) , min |
1360 |
1380 |
1390 |
1400 |
1410 |
|
Linear change after reheating(1550, 2h) % |
0 ~ -0.6 |
0 ~ -0.55 |
0 ~ -0.3 |
0 ~ -0.3 |
0 ~ -0.3 |
|
Apparent porosity max, % |
22 |
21 |
20 |
20 |
19 |
|
Cold crushing strength Mpa, min |
40 |
45 |
50 |
55 |
60 |
Our service：
1. Strict QC & Fast delivery.
2. Free samples are available by freight collect.
3. High quality goods, Perfect Pre-sales, and good designing service.
4. Welcome to visit our factory at anytime on site or online .
5. We will update you the production process after placing order by photos or online.
6. We have special after-sales team to solve your problem during using our products.
